DB475/850 雙帶通(tong)(tong)(tong)(tong)濾(lv)波(bo)器主要(yao)設(she)計用(yong)于 NDVI 成像應用(yong)。使用(yong)單個相(xiang)機(ji)(ji)時(shi)(shi),結合此濾(lv)光片可(ke)在相(xiang)機(ji)(ji)傳感器的(de)紅(hong)色(se)(se)(se)通(tong)(tong)(tong)(tong)道(dao)中捕獲(huo)反(fan)(fan)射的(de)近紅(hong)外(wai)光(850nm),并在傳感器的(de)藍(lan)色(se)(se)(se)通(tong)(tong)(tong)(tong)道(dao)中捕獲(huo)反(fan)(fan)射的(de)藍(lan)光(475nm)(不(bu)(bu)使用(yong)綠色(se)(se)(se)通(tong)(tong)(tong)(tong)道(dao)))。即使在使用(yong)廉價的(de)消費(fei)類相(xiang)機(ji)(ji)(首先移除了其 IR 阻擋濾(lv)光片)時(shi)(shi),這(zhe)種(zhong)簡單的(de)分離也可(ke)以通(tong)(tong)(tong)(tong)過(guo)執行(xing)以下計算(suan)對(dui) NDVI 的(de)紅(hong)色(se)(se)(se)和藍(lan)色(se)(se)(se)通(tong)(tong)(tong)(tong)道(dao)進行(xing)后處理:NDVI = (red – blue) /(紅(hong)色(se)(se)(se)+藍(lan)色(se)(se)(se))。健康(kang)的(de)植(zhi)被會(hui)吸收(不(bu)(bu)反(fan)(fan)射)藍(lan)光并強烈(lie)反(fan)(fan)射近紅(hong)外(wai)光。因此,該(gai)信(xin)息(xi)可(ke)用(yong)于對(dui)圖像應用(yong)虛假顏色(se)(se)(se)梯(ti)度,以更好地(di)突出健康(kang)植(zhi)被區域與受壓(ya)/患病或(huo)無植(zhi)被區域之間的(de)對(dui)比。
安裝和尺寸選項:
現(xian)貨供(gong)(gong)應(ying)的雙(shuang)帶(dai)通濾光(guang)(guang)片(pian)提(ti)供(gong)(gong)螺(luo)紋(wen)安裝件,尺(chi)(chi)寸 M13.25 至(zhi) M82;25.4 C 接口(kou);滑動(dong)安裝座;或卸(xie)載。如果愿意,雙(shuang)帶(dai)通濾光(guang)(guang)片(pian)可(ke)以光(guang)(guang)學膠(jiao)合在 M12 鏡頭后(hou)面,同(tong)時也(ye)可(ke)以提(ti)供(gong)(gong)定制形狀(zhuang)和尺(chi)(chi)寸。
雙帶(dai)通(tong)濾(lv)(lv)波(bo)器在 NDVI 空(kong)中(zhong)無人(ren)機(ji)檢(jian)查中(zhong)變得越(yue)來(lai)越(yue)流行,允(yun)許單傳感器成像并減少操作負(fu)載。NDVI 傳統(tong)上通(tong)過衛星(xing)圖像獲得,現在可以使用雙帶(dai)通(tong)濾(lv)(lv)波(bo)器和個(ge)人(ren)航空(kong)成像設備獲得。
Copyright© 2013-2023 上海連航機電科技有限公司 版權所有
地址:上海市寶山區滬太路1866號諾誠M7創意園B區211
電話 (Tel.):400-135-1288 傳真 (Fax):400-135-1288 郵箱 (E-mail):
 
|
掃描微信二(er)維碼關注我(wo)們